ghsa-mg2g-8pwj-r2j2
Vulnerability from github
Published
2021-06-10 17:21
Modified
2022-03-15 16:38
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
Authentication bypass in SilverStripe GraphQL
Details

The GraphQL module accepts basic-auth as an authentication method by default. This can be used to bypass MFA authentication if the silverstripe/mfa module is installed, which is now a commonly installed module. A users password is still required though.

Basic-auth has been removed as a default authentication method. If desired, it can be re-enabled by adding it to the authenticators key of a schema, or on SilverStripe\Graphql\Auth\Handler

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "silverstripe/graphql"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "silverstripe/graphql"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-alpha1"
            },
            {
              "fixed": "4.0.0-alpha2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26136"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-288"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-06-10T14:41:10Z",
    "nvd_published_at": "2021-06-08T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The GraphQL module accepts basic-auth as an authentication method by default. This can be used to bypass MFA authentication if the silverstripe/mfa module is installed, which is now a commonly installed module. A users password is still required though.\n\nBasic-auth has been removed as a default authentication method. If desired, it can be re-enabled by adding it to the authenticators key of a schema, or on SilverStripe\\Graphql\\Auth\\Handler",
  "id": "GHSA-mg2g-8pwj-r2j2",
  "modified": "2022-03-15T16:38:13Z",
  "published": "2021-06-10T17:21:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26136"
    },
    {
      "type": "WEB",
      "url": "https://forum.silverstripe.org/c/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/graphql/CVE-2020-26136.yaml"
    },
    {
      "type": "WEB",
      "url": "https://www.silverstripe.org/blog/tag/release"
    },
    {
      "type": "WEB",
      "url": "https://www.silverstripe.org/download/security-releases"
    },
    {
      "type": "WEB",
      "url": "https://www.silverstripe.org/download/security-releases/cve-2020-26136"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Authentication bypass in SilverStripe GraphQL"
}


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